First, leftists yell GARLAND! because they never entertained the idea Hillary would lose. No one in the GOP besmirched Judge Garlands reputation out of spite. We don’t do that, the left does. All you have to do is read these comments for proof.
The reason he was not confirmed is because it was a Presidential election year, Obama had one foot out the door and it was proper to postpone to allow whomever was chosen by the people to appoint the next SC Justice.
You bet it all on Hillary and you lost.
Hugh Hewitt said it best: “The incantation of “Merrick Garland” is a cult-like reflex, telegraphing a child’s grasp of Constitutional structure, and a slavish devotion to left wing Democratic talking points. But keep at it. It worked so well in 2016.”